I'm currently developing an API for my application on RoR
As an example, I created some XML, loaded with all the info I need to create the object, let's say a Person, and using Curl I submitted it to my application
I'm able to call exactly the create action I want from the controller and the hash params of the object are being passed correctly
But now I need to apply a different behaviour if request was made or not with XML, what is bothering me is why in the controller request.format gives "/".
curl -v -H "Content-Type: application/xml; charset=utf-8" --data-ascii @client.xml http://foo.com:3000/clients?api_key=xxx
logger.debug request.format # produces "*/*"
# never gets here
*/* means that the user-agent accepts all formats and doesn't care what format you give it. I believe Safari does this, among others. By default,
curl sends an Accept header of
Here is a dump of the headers
curl sends by default:
User-Agent: curl/7.18.1 (i386-apple-darwin9.6.0) libcurl/7.18.1 zlib/1.2.3 Host: example.com Accept: */* Content-Type:
However, in this case, it looks like you want to send back XML if the payload sent to you was XML? If that's the case, you want to check the request's Content-Type header directly. i.e.,
request.content_type is the method you want.
Addenda: I thought a bit more about this, and I think the best approach is to first check
request.format and only if that is inconclusive check
request.content_type. Essentially, the HTTP spec provides for clients being able to tell servers that "I'm giving you XML, but I want JSON back." The Accept header is how clients tell you what they want back, and if someone actually sends it, you should honor that. Only use the request's Content-Type as a hint if the client didn't specify.